package com.dzh.dao;

import com.dzh.pojo.Department;
import org.springframework.stereotype.Repository;


import java.util.Collection;
import java.util.HashMap;
import java.util.Map;

@Repository
public class DepartmentDao {

    //模拟数据库中的值
    private static Map<Integer, Department> departments=null;


    static {
        departments =new HashMap<Integer, Department>();//创建部门表
        departments.put(101,new Department(101,"教学部"));
        departments.put(102,new Department(102,"研发部"));
        departments.put(103,new Department(103,"市场部"));
        departments.put(104,new Department(104,"人力部"));
        departments.put(105,new Department(105,"实施部"));

    }
    //==================CRUD========================

    //获得所有部门信息
    public Collection<Department> getDepartment(){
        return  departments.values();
    }

    //通过ID得到部门
    public Department getDepartmentById(Integer id){
        return  departments.get(id);
    }


}
